This is the 15271st most frequent Russian word.
посещали
"Visited."
In this sentence, 'посещали' is used as the plural, past tense of the verb 'посещать', meaning 'to visit', indicating a repeated action in the past.
Мы посещали музей каждый год.
We visited the museum every year.
Here, 'посещали' describes a habitual, past action, showing the frequency of visiting their grandmother.
Они часто посещали бабушку в деревне.
They often visited their grandmother in the village.
In this example, 'посещали' refers to attending lectures, which broadens the meaning to include visitation or attendance in an educational context.